Battery charger



FIG. 1 is a perspective view of a battery charger, as viewed from the top, front and right side, embodying our new design;

FIG. 2 is a perspective view thereof, as viewed from the bottom, rear and left side;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is a perspective view of the battery charger of FIG. 1 having batteries positioned therein.

The broken lines are for illustrative purposes only and form no part of the claimed invention. 

CLAIM The ornamental design for a battery charger, as shown and described. 